摘要
选用2个甜高粱和1个粒用高粱品种:‘高粱蔗’、‘四丽美’和‘河农16’,利用PEG6000对供试品种进行干旱胁迫处理,测定这3个品种不同处理时间和浓度的保护酶系活力和渗透调节物质(超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)酶活力、可溶性糖含量)的变化,并进行抗旱性分析。结果表明:胁迫处理下这3个品种的SOD、CAT、POD酶活力和可溶性糖含量均表现为‘高粱蔗’最高,‘四丽美’次之,‘河农16’最低,即‘高粱蔗’抗旱性最强,‘河农16’最差;不同品种类型之间保护酶系活力和渗透调节物质变化不同,抗旱能力存在差异,即甜高粱品种的抗旱能力强于普通粒用高粱品种。
The experiment used two sweet sorghum and a grain sorghum varieties：＇ Sorghum cane ＇,＇ Four Li-mei ＇ and ＇ Henong 16 ＇.These varieties were for drought treatment using PEG stress.Changes of protective enzymes activities and osmotic adjustment substances（sugar content and the SOD,CAT,POD enzyme） were tested with different treatment time and concentration in three varieties and drought resistance were analyzed.The results showed that the SOD,CAT,POD enzyme activity of these three species and soluble sugar content were ＇ Sorghum cane ＇ ＇ Four Li-mei ＇ ＇ Henong 16 ＇.The drought resistance of sorghum cane was the strongest and ＇ Henong 16 ＇ was the worst in the selected varieties;changes of protective enzymes activities and osmotic adjustment substances between varieties which drought tolerance were different.The drought-resistant of sweet sorghum was stronger than the ordinary grain sorghum varieties.
出处
《中国农学通报》
CSCD
北大核心
2011年第9期160-165,共6页
Chinese Agricultural Science Bulletin
基金
河北省自然科学基金(C2008000340)
